Telegram bot for automatic search and monitoring of cars

Main functionality:
Search for cars by brand, model, year, price, transmission, region
Analysis of "market deviation" based on median price
Display only new listings (up to 48 hours)
Anti-duplicate (listings are not sent again)
Background monitoring with automatic notifications in Telegram
Flexible filters controlled through the bot menu

Technologies:
Python 3.11
aiogram 3
Playwright (bypassing OLX anti-bot)
BeautifulSoup / httpx
SQLite